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Revision as of 07:12, 8 June 2007 by DonDiego (talk | contribs) (This article does not explain much compression theory.)
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Quantization is the process of throwing away high frequency data.

Another possible definition of quantization is mapping one set elements into smaller set of elements. This covers both scalar quantization (mapping some numbers to just one number) and vector quantization (mapping similar blocks of data to one block).